static float Dot(Vec2 a, Vec2 b)

The dot product is an extremely useful operation! One major use is to determine how similar two vectors are. If the vectors are Unit vectors (magnitude/length of 1), then the result will be 1 if the vectors are the same, -1 if they’re opposite, and a gradient in-between with 0 being perpendicular. See Freya Holmer’s excellent visualization of this concept

Vec2 a First vector.
Vec2 b Second vector.
RETURNS: float The dot product!

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